Are there nonstop flights from Xi'an (XIY) to Surabaya (SUB)?

No. The fastest connection is via Haikou, about 6h 29m of total flying time.

What is the fastest connection from Xi'an (XIY) to Surabaya (SUB)?

via Haikou ≈ 6h 29m, via Guangzhou ≈ 6h 34m, via Shenzhen ≈ 6h 35m (estimated flying time, excluding layovers).

from 23,000 JAL miles (economy, one way, based on the published award charts).

Xi'an Xianyang International Airport (XIY) to Juanda International Airport (SUB)・4,670 km

No nonstop flights. The fastest connection is via Haikou (HAK), about 6h 29m of flying time (layover not included).

With milesJAL 23,000 miles+ (via HKG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

9 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.